Quarter	US dollars
2004-12-31	1713
2005-03-31	794
2005-06-30	482
2005-09-30	1228
2005-12-31	1037
2006-03-31	1580
2006-06-30	586
2006-09-30	850
2006-12-31	599
2007-03-31	924
2007-06-30	718
2007-09-30	1341
2007-12-31	1487
2008-03-31	2395
2008-06-30	1793
2008-09-30	1304
2008-12-31	864
2009-03-31	526
2009-06-30	487
2009-09-30	435
2009-12-31	425
2010-03-31	214
2010-06-30	419
2010-09-30	1045
2010-12-31	1528
2011-03-31	583
2011-06-30	837
2011-09-30	1220
2011-12-31	988
2012-03-31	1446
2012-06-30	1667
2012-09-30	2539
2012-12-31	2050
2013-03-31	1804
2013-06-30	1647
2013-09-30	2118
2013-12-31	2210
2014-03-31	1182
2014-06-30	1257
2014-09-30	1336
2014-12-31	1110
2015-03-31	1724
2015-06-30	1721
2015-09-30	2339
2015-12-31	1448
2016-03-31	1248
2016-06-30	2044
2016-09-30	1154
2016-12-31	1144
2017-03-31	885
2017-06-30	1130
2017-09-30	1139
2017-12-31	1550
2018-03-31	1499
2018-06-30	1178
2018-09-30	1826
2018-12-31	910
2019-03-31	956
2019-06-30	835
2019-09-30	1117
2019-12-31	955
2020-03-31	866
2020-06-30	970
2020-09-30	912
2020-12-31	995
2021-03-31	1398
2021-06-30	1534
2021-09-30	1389
2021-12-31	1462
2022-03-31	1924
2022-06-30	1118
2022-09-30	995
2022-12-31	1200
2023-03-31	936
2023-06-30	711
2023-09-30	655